Kenneth e



Feb. 14, 192s.

K. E. I YMAN BRAKE OPERATING MECHANISM Filed June v, 1927 2 sheets-snee: 1

KENNETH E. LYMAN y Fab. 14, 1928.

. K. E. LYMAN BRAKE OPERATING MECHANISM 2 Sheets-Sheet 2 Filed June '7. 1927 M14/4 KENNETH ELYMAN Patented Feb. 14, 1928.

UNITED STATES PATENT OFFICE.

KENNETH E. LYMAN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 BENDIX BRAKE COMPANY,

lOF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BRAKE-OPERATING MECHANISM.

Application filed June 7,

This invention relates to brakes, and is illustrated as embodied in novel operating mechanism for a frontwheel automobile brake. An object `of the invention is to provide a strong but inexpensive support for the chassis end of the brake-applying shaft, which can flex to permit the shaft to oscillate up anddown and to move lengthwise, thus compensating for movement of the vehicle springs. 1

In one desirable arrangement. the spring is bowed at its ends, which ends are preferably secured tothe chassis frame, and is provided between its ends with shaft-supporting means which in itself embodies substantial novelty.

The above and other objects and features of the invention will be apparent from the following description of two illustrative embodiments shown in the accompanying drawing, in which:

Figure 1 is a vertical section through one front brake, and associated Vparts,-showing' the brakeapplying shaft in front elevation;

Figure 2 is a partial section on the line 2-2 of Figure 1, showing the novel shaft support in top plan;

Figure 3 is a partial section on the line 3-3 of Figure 2, showing the novel support in elevation;

Figure 4 is a perspective view of an iniproved shaftoperating arm arranged to interconnect the shaft end and the spring support;

Figure 5 is a vertical section corresponding to Figure l, but showing a modified form of support;

Figure 6 is a partial section on the line (iw-6 of Figure 5, showing the support in top plan; and

Figure 7 is a partial section on the line 7-7 of Figure 5, showing the support in elevation.

Each of the illustrated brakes includes a rotatable drum 10, mounted with a wheel not shown) on the spindle l2 of a knuckle 1 4 swivelled, by a king-pin 16 or the like, at one end of an axle 18. `Axle 18 supports the chassis frame 20, through the usual springs 22. The open side of drum 10 may be closed by the usual backing plate 24.

The friction means of the brake may include shoes 26, shown as applied by a double cam 28 operated through ya universal joint 30 by a brake-operating shaft 32 terminating 1927. Serial No. 197,181.

:above-identified parts or their equivalents may be of any desired construction. The present invention relates to supporting the chassis end of the shaft 32.

In the arrangement of Figures l-4, the 4shaft 32 is'operated by a lever or arm 3l,

having a split hub surrounding and con tractcd by a clump screw 36 about a serN rated portion 380i' the shaft. The hub of lever 34 is formed with an internal groove 40, registering' with a groove 42 at the end of shaft 32, and receiving a semicircular loop er offset on a novel support 44 formed of a spring having looped resilient ends sccured to the chassis frame 20 by bolts 46. The spring 44 is preferably round in crosssection, and enters the recess defined by grooves 40 and 42 through notches 48 in the hub of lever 34.

In the arrangement of' Figures 5-7, shaft 32 is operated by a lever or arm 50 secured thereto in any desired manner, and is supported at its chassis end by a novel iea' spring or flat metal support 52 having looped ends (with the flat surfaces extending vertically) secured te the chassis frame by bolts 54. Between the looped ends, spring 52 is twisted into a horizontal plane, and formed with a loop or circular offset 54 receiving the end of shaft 32, to which it may be secured, if desired, by means such as a key or lhile two illustrative embodiments have been described in detail, it is not my intention to limit the scope of the invention to those particular embodiments, or otherwise than by the terms of the appended claims.

I claim:

1, A support for the chassis end ol'l a brake-applying shaft, comprising a lunved spring, means for securing both ends of the spring to the chassis frame, and means bc-` tween t-he ends of the spring for supporting the shaft end.

2. A .support for the chassis end of a brake-applying shaft, comprising a spring, means for securing spaced portions of the spring to the chassis frame, and means -between said portions of the spring for rotat-V loe brake-applying shaft,` comprising ya spring having looped ends and arranged to be se- -cured to the chassis frame, andhaving a shaft support between said ends.

5. A support for the; chassis end of a;A VbraIce-applying,` shaft,` comprising` a spring having` looped ends'and arranged to be secured to the chassis frame, in combination with an `operating lever interconnecting the shaft and the spring.

6. A support for the chassis. endr of a brake-appbfing shaft, comprising? a spring having looped ends and 'arrangedy to be .secured tothe `chassis. frame, in lcombination With an operating level` having a hub secured to the shaft and supported by the spring.

signed my name.

'I'.A suppol'tfor the chassis end of a` brake-applyingshaft having a groove adjacentsaid end, comprising an operating lever havingl a hub `secured to ltheshaft and encircling l.said Y groove, and Aa 4springr support in the groove held in place by said hub.

S. Alfsnpport vtor the chassis end of. a brake-applying shaft, comprising an lelongated lexiblemember having both ends secured to the chassis frame and having an inteiflnediatfev; portion lformed to pioviderva shaft-supprting portion.

9. A Asupper-infor the chassis end brakeapplying shaft, l comprising a spring secured to` 4thel chassisV frame at spaced points i andfhaving ashaft'supporting device hetween '.said ,-points. Y

In vtestimony whereof, I have hereunto KENNETH E. mman.y

VOnfla 

